AirHint found the following cheapest return flights from Madrid (MAD) to Oslo (OSL) in August 2025 (see full year).

Return flights

29 Aug - 28 Sep	Norwegian
29 Aug - 06 Sep	Norwegian
29 Aug - 07 Sep	Norwegian
30 Aug - 05 Sep	Ryanair
29 Aug - 27 Sep	Norwegian
29 Aug - 02 Sep	Norwegian
26 Aug - 03 Sep	Ryanair
30 Aug - 02 Sep	Ryanair
29 Aug - 01 Sep	Norwegian
28 Aug - 01 Sep	Norwegian
28 Aug - 31 Aug	Norwegian
29 Aug - 31 Aug	Norwegian
28 Aug - 30 Aug	Norwegian
22 Aug - 24 Aug	Norwegian	direct
21 Aug - 23 Aug	KLM
21 Aug - 25 Aug	KLM
22 Aug - 25 Aug	Norwegian
23 Aug - 31 Aug	Iberia Express
20 Aug - 22 Aug	Vueling Airlines
27 Aug - 31 Aug	Scandinavian Airlines

Also check the deals for one-way flights from Madrid to Oslo in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Madrid to Oslo in August from 147€

Return flights